Medical Distribution Robot Based On Visible Light Communication

In recent years,with the further aggravation of the population aging trend in China,more and more elderly patients,making the burden of medical logistics services more and more.At the same time,with the progress of medical science and technology,the number of medical devices and disposable medical supplies used for auxiliary treatment of patients is also increasing.Facing the current situation of hospital logistics service,it is of great significance to design a medical distribution robot which can work for a long time,cheaply and efficiently to transport goods.Aiming at the problems of high cost and complex appl ication of traditional image sensors,a medical robot based on visible light recognition department and location is designed.The method of visible light communication is mainly used to complete the positioning and department identification of medical robo ts.In hardware design,the robot is mainly composed of power supply module,ultrasonic module,liquid crystal display module,infrared tracking sensor module,optical signal receiving module,steering gear and motor module,driving module,optical signal sending module,etc.In the localization algorithm design,using the characteristics of LED illumination and setting reasonable localization threshold,the problem of large localization error of LED-ID algorithm in traditional applications is solved.In th e process of communication,odd coordination Hamming code checking method is added to improve the reliability of communication.In the part of robot walking,a four-way tracking scheme is added,which makes the robot walking more stable and ensures reliable transportation.In this thesis,Altium Designer,Multisim and Keil uVision 5 are used to complete the circuit design,simulation and code writing.The test results show that the robot can accurately identify departments and deliver medical materials to designated locations through visible light communication.The positioning error of the robot is 2.37 cm in the positioning berth.Compared with the traditional positioning,the positioning accuracy of the robot is improved immensely,which achieves the desired design purpose.